Add push trigger to Wilms tumor cell typing Docker build/push workflow & proposed change to template

[jaclyn-taroni]

Purpose/implementation Section

Here, I'm adding a GitHub Actions workflow trigger that will push the Docker images for the cell-type-wilms-tumor-06 module to ECR upon merge to main.

I meant to accomplish this in maud-p#3, but I was (arguably overly!) focused on aligning the changes with the template.

That made me wonder why these commented-out steps are not in the template, so I've added them. I could see an argument for not including them–we want to make sure something is sufficiently mature before pushing–but I don't know that the pull request trigger and push trigger need to be uncommented at the same time.

Please link to the GitHub issue that this pull request addresses.

N/A

Provide directions for reviewers

What do you think of this change to the template? I admit there maybe should be docs changes as well, but I wanted to discuss this first!

[jashapiro]

I am fine with the change to the template; I think I simply forgot to add it when I was trying different approaches to building and pushing.

[jaclyn-taroni]

Thanks! I don't think there are any docs changes required, having reviewed the comments at the top of the YAML + the ensuring reproducibility docs.